A more cynical take (than this):

Not a MSM tipping-point, but a switch in focus — from the bad-US to the good-victim-Iraqis, which allows the
reporters to display their PC-approval of non-US people, without having to give any credit to Bush & the US.
As long as the US does not get credit, the media-professionals can aid democracy, of only because it is in their self-interest